柯林斯詞典bye /ba?/ (also bye-bye) 1. CONVENTION Bye and bye-bye are informal ways of saying goodbye. 再見 Bye, Daddy. 再見,爸爸。bye /ba?/ CONVENTION 1. N the situation in which a player or team in an eliminatory contest wins a preliminary round by virtue of having no opponent (躰育比賽)輪空晉級(jí)[sport] 返回 bye-bye